added maven version

.github/workflows/build_test_analyse.yml

@@ -6,10 +6,15 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Set up GIT Checkout
+        uses: actions/checkout@v4
         with:
           # Shallow clones should be disabled for a better relevancy of analysis
           fetch-depth: 0
+      - name: Set up maven
+        uses: stCarolas/setup-maven@v5
+        with:
+          maven-version: 3.9.9
       - name: Set up JDK 17
         uses: actions/setup-java@v4
         with:
@@ -22,7 +27,7 @@ jobs:
         with:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar
-          restore-keys: ${{ runner.os }}-sonar
+          restore-keys: ${{ runner.os }}-sonar      
       - name: Build, run tests and analyse
         run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar -Pcoverage -Dsonar.projectKey=europeana_entity-management
         env: